Originally Posted by
FlyDeltaConnection
Unfortunately, congestion at major airports is what happened when customers demanded more flights. Instead of a couple of flights a day from say MSP to SEA on a 767 or A330 there are now 5-6 flights a day with a mix of 739's and 757's. Or say MSP to JFK instead of one or two flights on a 757 there is now multiple using 717's or A319's. Those extra flights on every route add up quick.
That is actually not the reason
It has more to do with things being riegonalized with smaller capacity carriers thus you need more flights to take on the volume
At peak evening time you have p, service by AS and DL to the smaller airports in NW.. They have around 60 flights from the 5-7 pm time alone coming in and and more going out on top of that you have other carriers last flights out in the west for connections at their hubs
this time for international redeyes to europe
there ais a bit of a lull then the red wyes to east coast start after 9pm.